FILE - This Sept. 21, 2010, file photo shows the death chamber of the new lethal injection facility at San Quentin State Prison in San Quentin, Calif. The number of people executed in the United States in 2015 dropped to the lowest level since 1991 as states impose fewer death sentences and defendants in capital cases have access to better legal help. The Death Penalty Information Center, a group that opposes executions and tracks the issue, said 28 inmates were executed this year. Thats down from 35 last year and far below the peak of 98 in 1999. (AP Photo/Eric Risberg, File)